Supply

Supply is a terran gameplay counter limiting the size of a terran force. Every constructed unit takes up supply, and more supply can be generated by constructing supply depots, up to a maximum value of 200. New units can be produced so long as the cumulative supply of all active units does not exceed the number of available supply.

In strategy discussions, supply levels may be denoted as x/y, where x is the supply used, and y is the total available supply. Unit costs may be denoted as x/y/z, where x is the cost in minerals, y is the cost in gas, and z is how much supply is used.

Protoss psi and zerg control serve the same purpose.

StarCraft

Producers

	Building/Unit
10	Command center
8	Supply depot

Consumers

	Building/Unit
1	SCV Marine Firebat Medic Ghost
2	Goliath Siege tank Vulture Wraith Dropship Science vessel
3	Valkyrie
6	Battlecruiser
8	Armed Nuclear Silo

StarCraft II

Producers

	Building/Unit
16	Supply depot with Calldown: Supplies
15	Command center (LotV) Orbital command (LotV) Planetary fortress (LotV)
11	Command center (WoL/HotS) Orbital command (WoL/HotS) Planetary fortress (WoL/HotS)
8	Supply depot

Consumers

	Building/Unit
0	MULE
1	SCV Marine Reaper
2	Ghost Hellbat Hellion Liberator Marauder Medivac Raven Viking Widow mine Firebat Medic Science vessel Spectre Vulture Wraith
3	Banshee Cyclone Siege tank Goliath HERC Predator
4	Diamondback
6	Battlecruiser Thor Hercules dropship